The development of cardiovascular surgery.
D006348:Cardiac Surgical Procedures / Q000266:history*; D013502:General Surgery / Q000266:history*; D006355:Heart-Lung Machine; D006493:Heparin / Q000627:therapeutic use; D049673:History, 20th Century; D006801:Humans; D011655:Pulmonary Embolism / Q000601:surgery*
D006493:Heparin